Wind Turbine Power Performance Testing using Nacelle Transfer Function
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초록
A study on power performance testing of a wind turbine which has no met-mast at a distance of 2～4 rotor diameter was carried out using the Nacelle Transfer Function, NTF, according to IEC 61400-12-2. The wind data for this study was measured at HanKyoung wind farm of Jeju Island. The NTF was modeled using the correlation between wind speeds from the met-mast and from the wind turbine nacelle within 2～4 rotor diameter from the met-mast. The NTF was verified by the comparison of estimated Annual Energy Productions, AEPs, and binned power curves. The Nacelle Power Curve, NPC, was derived from the nacelle wind speed data corrected by NTF. The NPC of wind turbine under test and the power curve offered by the turbine manufacturer were compared to check whether the wind turbine is properly generating electricity. Overall the NPC was in good agreement with the manufacturer's power curve. The result showed power performance testing for a wind turbine which has no met-mast at a distance of 2～4 rotor diameter was successfully carried out in compliance with IEC 61400-12-2.
Abstract
A study on power performance testing of a wind turbine which has no met-mast at a distance of 2～4 rotor diameter was carried out using the Nacelle Transfer Function, NTF, according to IEC 61400-12-2. The wind data for this study was measured at HanKyoung wind farm of Jeju Island. The NTF was modeled using the correlation between wind speeds from the met-mast and from the wind turbine nacelle within 2～4 rotor diameter from the met-mast. The NTF was verified by the comparison of estimated Annual Energy Productions, AEPs, and binned power curves. The Nacelle Power Curve, NPC, was derived from the nacelle wind speed data corrected by NTF. The NPC of wind turbine under test and the power curve offered by the turbine manufacturer were compared to check whether the wind turbine is properly generating electricity. Overall the NPC was in good agreement with the manufacturer's power curve. The result showed power performance testing for a wind turbine which has no met-mast at a distance of 2～4 rotor diameter was successfully carried out in compliance with IEC 61400-12-2.
참고문헌 (8)
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- International Electrotechnical Commission, "Wind Turbines - Part 12-2 : Power Performance of Electricity Producing Wind Turbines based on Nacelle Anemometry", ~ (2013)
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- Her, S. Y., "Analysis of Power Performance and Uncertainty for a 3.0MW Wind Turbine", Conference of J. Korea Society for Computational Fluids Engineering (2010)
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